2) applying potassium fertilizer at different stages
分次施钾
1.
The results showed that:(1) Ridging by earthing up after planting and applying potassium fertilizer at different stages can increase the contents of total phenols,chlorogenic acid,rutin and petroleum ether extracts.
)品种云烟87为试材,于2005年～2006年在河南南阳研究了不同成垄方式与分次施钾对烤烟多酚和石油醚提取物含量的影响。
2.
A study was carried out on the effects of different ridging mode and applying potassium fertilizer at different stages on the contents of potassium and leaf quality of flue-cured tobacco(Nicotiana tobacum L.
2005年研究了不同成垄方式及分次施钾对烤烟钾素吸收和品质的影响。
3) Application sequence of N and K
氮钾施用次序
4) teaching according to levels
分层次实施
5) application in two dressings
分两次施用
6) Irrigation and nitrogen application regimes
灌水次数与施氮方式
补充资料：分施
1.施舍。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条